<!DOCTYPE html>
<script src="include.js"></script>
<div id="text">==</div>
<script>
    test(() => {
        const text = document.getElementById("text");
        const range = document.createRange();
        range.setStart(text.firstChild, 0);
        range.setEnd(text.firstChild, text.firstChild.length);
        text.firstChild.insertData(1, "Привет");
        println(range.toString());
    });
</script>
